Pool eats CYA

[domct203]

I'm confused on this statement. "Standard available to compare" reminds me of the pH shades of red scale test NOT the disappearing dot for CYA test???

There is a 50ppm standard solution available. It is used as the sample in the CYA test and yields a 50ppm reading.

 

[Philo]

Thanks, first I've heard of it. I hate that darn dot .....

 

[BMeeley]

Thanks, first I've heard of it. I hate that darn dot .....

 

[TomHunt]

I bought the standard from the TF100 people. It allows you to see what 50 is suppose to look like.

Edit:
Sorry, I see someone answered this already.

 

[Philo]

I bought the standard from the TF100 people. It allows you to see what 50 is suppose to look like.

Edit:
Sorry, I see someone answered this already.

I can't find where this is available. Do you have a link?

Thanks

 

[JamesW]

R-7065 CYA Standard 50 ppm (2 ounces)

 

[Philo]

Thanks I just ordered it. I hope there are instructions..........

 

[JoyfulNoise]

Thanks I just ordered it. I hope there are instructions..........

Just use it like a pool water sample, mix it with the appropriate amount of R-0013 and measure.

Which comparator block do you use for CYA measurements?

 

[Philo]

Just use it like a pool water sample, mix it with the appropriate amount of R-0013 and measure.

Which comparator block do you use for CYA measurements?

I have the K-2006.

 

[JoyfulNoise]

I have the K-2006.

Ok. That should work. Some folks with the round CYA tube found in the TFT kits have found that the CYA Standard read closer to 40ppm and not 50ppm.

Fill #9058 comparator block to the 50ppm mark and then find the lighting conditions that give you the most complete occlusion of the dot possible. Those are then the conditions you should replicate when testing.

 

[Philo]

Thanks!